Jeep - Grandcherokee :: 1998 - P0138 Code / O2 Sensor High Voltage
Jul 16, 2011
I drive a 1998 Jeep Grand Cherokee, 6 cylinder engine, with about 120,000 miles on it. I used a code scanner and pulled a P0138 code-bank 1 sensor 2 O2 sensor high voltage, if I'm correct. First of all, it looks like this sensor is after the catalytic converter, right? So I think I either have a bad 02 sensor or a bad catalytic converter. What are the consequences of driving around without fixing this? Will I see any reduction in fuel economy, or any potential long-term problems elsewhere?
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My 2005 Camry check engine light is on. The trouble code is P0138, bank 1 sensor 2 oxygen sensor. Engine is the 2AF-ZE. Not a California emission car. Car is Japan built. It has two O2 sensors. What is the correct OEM part #? I believe it would be a Denso?
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I have a 95' Grand Cherokee, V8 5.2L. Recently, it started overheating and was diagnosed as a head gasket issue at a shop. I ended up replacing the head gasket, thermostat, and water pump. (The radiator, top radiator hose, and radiator cap were replaced within the last year as well.) Despite the repairs, the coolant in the reservoir does not move. The Jeep overheats and there is a squealing noise coming from what may be the water pump. There is also a slight leakage of coolant near the water pump bypass hose, but does not seem to be coming from the hose itself. What else am I missing?
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1998 Jeep Grand Cherokee, ~130k miles, 6 cyl. engine. Returning from a trip this morning, I glanced below my car and saw a small (~3/16 inch diameter) rubber hose dragging on the ground. I traced it back and found one end connected to the top of the front differential. (Photo below). There's at least 2 feet of hose before the break. Despite searching, I could not figure out where on earth the other end of this end connected to. It doesn't work for that what's left of the hose is long enough to reach just about anything on the driver's side of the block.
The hose doesn't leak fluid, even with the engine running. I checked oil level, transmission fluid, coolant, brake fluid, power steering fluid, and windshield cleaner (I was getting desperate, OK?)-all levels were normal with no signs of contamination. The car drives fine-I possible drove up to 200 miles before I noticed it, and made the last 20 back home with no issues. (I was driving in RWD mode though). Where this hose is supposed to run to? I'm assuming Chrysler meant it to connect somewhere.
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The ambient (outside) temperature sensor on my 04 jeep grand cherokee is now stuck in the open position (it reads -40 constantly) after having body work done to it. Could this be a fuse, loose wires, or is the senor broken? Also could this have been damaged by the body shop?
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I drive a '98 Jeep Grand Cherokee Laredo, 6 cyl. engine, ~130k miles. I noted a slow loss of power steering fluid a while back and, after hillbillying it for a while (money was tight, and there was a sale on gallon jugs of PS fluid), I decided to address this problem properly and fix it. I added UV indicator dye to the PS reservoir and drove around for several days, hoping to pinpoint the leak. Well, what I found was wherever the fluid is leaking from, it's in a position to be blown by the radiator fan, turning the inside of my engine into an ultraviolet Jackson Pollock painting. (That, or I really am leaking power steering fluid from my #1 spark plug wire). Any tips on how I can pinpoint this leak?
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I have a '98 Jeep Grand Cherokee 4w with a 5.2l, it has approx 145,000 miles. It leaks a little oil and when i recently checked it (level was good), it smelled of gas. It starts easy and runs great with no smoke and no knocking when shut down. I've read it could be anything from rings to a stuck injector. I drive it on short trips now, only occasionally going out of town. It is due for an oil change but I would like to have a solution before driving it more or getting the oil change.
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So this little gem of an SUV has been good enough to me over the year that I have had it, but it is one of those used vehicles that has me scared to look underneath cause there is always something a miss.
I have been having some power problems and the OBD check engine light has been coming on. The engine like to putter like if it's not getting enough fuel from a clogged fuel filter when it gets going, hot or cold. Have confirmed that the fuel pump is with proper voltage and pressure. Though haven't noticed a big difference with the new filter. The check engine light cycles a code of 21, which is refinanced to the O2 sensor, both upstream and down stream. That tells me that there are TWO O2 sensors for this model. And research has confirmed this. One ahead of the cat and one behind the cat.
Here's the kicker, I only have one O2 sensor at the head of the cat and the location of where the second one would be located is only a solid section of pipe from cat to muffler. I haven't been able to track down the plug connection for the second sensor and these codes and problem only came after I gave the Jeep a tune up.
1994 Jeep Grand Cherokee Limited V8
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I have a 2009 Jeep Grand Cherokee. One of the tire valves has a slow leak. I figured I could get a new valve. But, instead, the guy reminds me that the valve has the pressure sensor built in. He could put in a regular stem, but then the light on the instrument panel would never go out and I'm assuming I couldn't get through inspection like that.
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I was driving my '98 Jeep Grand Cherokee Laredo (6cyl 4.0l 4 wheel drive) on the freeway when it, very suddenly, started shuddering badly. The check engine light came on and then started blinking. I pulled right over and shut it off. I stared it back up and the engine is misfiring badly. I had a code reader with me and it's showing three codes. A random misfire, a cyl #5 misfire, and a Cyl#6 misfire. It will sit and idle (very roughly obviously).
There was no drop in RPMs, oil pressure, voltage or anything when it happened.
I got it home and replaced the distributor cap/rotor, all six spark plugs, and the plug wires but there is no improvement. I cleared the Codes and re-read them and got the same errors again.
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My mother's 1998 Jeep Grand Cherokee (60 k miles!) has developed an annoying slow drip at the rear main bearing (6 cyl). Are there any additives that are safe and might slow this? She just had the oil changed, so it's not a good time to be talking about high-mileage oil.
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My Jeep does not always start. All the dash lights come on, but when I turn the key to start the engine, they all go off. The lights stay off, and the engine will not start. The ignition won't even click... it's similar to a dead battery. When I turn the key back to its original position (when first inserting), all the gauges spike and the needles jump really high for a split second. When the door is open the gauges keep jumping (spiking). After waiting for 30 minutes, the engine will start fine like nothing was wrong (except the fluctuation in idle). It would rev high at idle sometimes, and sometimes it would idle low... so low in fact the jeep stalls. I have read about the symptoms of crank/camshaft sensors and relay, but I wanted to make sure from people that know more than I or have faced this particular problem.
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2004 Grand Cherokee. I was pulling a heavy trailer 1000 miles, and while coming down a mountain pass 50 miles from the end of the trip the check engine light came on. All other gauges (oil pressure, temperature, etc.) had not changed while climbing or descending and I was in low gear while descending to save the brakes. I drove the rest of the way to the destination without incident. I tried turning the Jeep off and restarting it several times to see if the check engine light would turn off and it stayed on. The next morning the light was off when I restarted it and has not come on again since. I hooked it up to a scan tool and received 2 codes: P0152 and P0132. 2 days later I noticed that it was revving high while idling and in Park. It would rev between 1500 and 2200 RPM while in Park, and at 900 RPM while in Drive. Also, while travelling at freeway speeds it seems like it's trying to downshift for no apparent reason. I hold the throttle still and have even tried cruise control and it intermittently increases engine speed, without changing ground speed. I assumed that I got the transmission too hot while climbing/descending and that the error codes listed above (related to O2 sensors) were associated with that, but now I'm wondering if something more has happened.
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I have a 1998 Gr Cherokee with an automatic tranny. It is slow to shift when cold and the overdrive shifting works reasonably well but I have been told by a reputable mechanic that the tranny needs a new tranny filter at over $1000. My latest check of the tranny fluid and the level and quality indicates both are good. Should I replace the tranny filter?
Also, for the same above vehicle, when I put the vehicle into a moderately hard turn (right and left), the front wheels audibly click and you can feel the click vibration in the steering wheel when happening.
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I have a 2004 Jeep Grand Cherokee 4.7L nonHO. I get a P0308 code that I have not been able to hunt down. It is odd because I only get the code if I restart the vehicle when it is warm. If I let it cool down all the way, no code, but if I restart after an hour or so, the code pops up. I have changed the plugs and the coil. I have run injector cleaner, but not changed the injector as I am nervous about busting the tiny plastic clips with my big meaty paws.
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So I noticed when it started getting cold that my Jeep emits this extremely high pitched whistling sound and I can't figure out what's going on. I've taken it to two mechanics and both said it was a belt that needed to be replaced so I had the belt replaced and the noise persisted. I've noticed a few things about the noise, it only happens when it is approximately 30 degrees outside or lower; only while the car is idling (when I accelerate the noise goes away immediately); It only happens after I've gone above approximately 30mph; The noise will go away after I've gone through a series of idling and accelerating; and stops immediately once I turn the car off. The Jeep is almost up to 150,000 miles.
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My CEL came on and the code said Coolant Temp Sensor High Voltage. Since there are 2 sensors, and my gauge isn't reading off, about 200F constantly, I assume the bad sensor is the water pump sensor. Also, is there a diagram of the sensorny locations and the easiest way to access them to swap them out. I have already purchased the sensor and gasket, just don't want to replace the wrong one or screw something else up in the process. It appears to be an easy job.
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My daughter's Jeep check engine light is on. Trying to get the car inspected so cannot be ignored. I think the code wasP0422, indicating it needed a new gas cap. We bought a new gas cap, cleared the code and it went away for a few days but before she could get it inspected, the light came on again. I saw similar problems suggestions were to get a better gas cap (we got one at autozone), or it could be something like a pump problem. We haven't taken to a dealer - it's a 2001
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My jeep will randomly just loose engine power the rpms just drop off completely. Sometimes the whole car goes off but not always sometimes just engine power then it wil kick back in after a few secs...... I have been looking everywhere see that it looks like a common problem but whole bunch of fixes.
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I have a code reader got P1193 - MAF sensor low voltage
Is it shot or just need cleaning? Or is it something totally different
2005 Santa fe 3.5l
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1993 ford explorer sport... I got an error code for a low voltage MAF sensor. how would i go about fixing it? Do i need to get a new MAF sensor?
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